A patient has a “cholesterol count” of 214. Like manyblood-chemistry measurements, this result is measured inunits of milligrams per deciliter (mg dL-1 ).(a)  Determine the molar concentration of cholesterol in     this patient’s blood, taking the molar mass of cholesterol to be 386.64 g       mol-1 .(b)  Estimate the molality of cholesterol in the patient’s      blood.(c)  If 214 is a typical cholesterol reading among men in     the United States, determine the volume of such blood     required to furnish 8.10 g of cholesterol.

Q: The freezing point of ethanol, CH3CH,OH, is -117.300 °C at 1 atmosphere. KAethanol) = 1.99 °C/m In a…

A: Given: Mass of compound (solute) = 12.60 g Mass of ethanol (solvent) = 265.8 g Freezing point of…

Q: Eicosene is a molecular compound and nonelectrolyte with the empirical formula CH2. The freezing…

A: Given that:  Freezing point of solution = 1.75°C  Kf of benzene = 4.90°C/m  Mass of eicosene solute…

Q: A saturated solution of Na2S2O3 at 80 degree celsius was determined to be 47.6% by mass. What is…

A:

Q: Colligative Properties The actual freezing point of ethanol is -117.30 C. How many grams of a…

A:

Q: 6. The molality of an aqueous solution of sugar (CHO:1) is 1.75m. Calculate the mole fractions of…

A: mole fraction represent the ratio of mole of one substance to the mole of total substance. It is a…

Q: An aqueous solution containing 36.8 g of an unknown molecular (non-electrolyte) compound in 143.2 g…

A: Solution is made up of two components which are solute and solvent. Solute is present in the minor…

Q: Given that an aqueous solution of glucose (C6H1206) has a density of 1.0173 kg/L, what is the molar…

A: Answer :-  The molality of Glucose solution = 0.253 M…

Q: Enter your answer in the provided box. Calculate the molality of a solution containing 190.6 g of…

A: Molality is defined as no of moles of solute per kg of solvent molality=no of molesmass of solvent…

Q: What molality of a nonvolatile, nonelectrolyte solute is needed to raise the boiling point of water…

A: Given,Kb = 0.520 oC/mΔT= 7.20 oC

Q: The freezing point of ethanol, CH3CH,OH, is -117.300 °C at 1 atmosphere. Kgethanol) = 1.99 °C/m In a…

A: Given: The freezing point of pure ethanol is -117.300°C. The freezing point depression constant of…

Q: The solubility of CoCl2.6H2O in methanol (CH3OH) is 38.5 g per 100 g of methanol (CH3OH) at 20oC.…

A: Assuming we have 100 g of methanol  Since the solubility of CoCl2.6H2O in methanol is 38.5 g in 100…

Q: 5) Creatinine, C4H7N3O, is a by-product of muscle metabolism, and creatinine levels in the body are…

A: The mass of creatinine present in 10.0 ml blood sample is calculated below.

Q: What is the osmotic pressure at 25°C when 74.5 mL of a solution containing 5.25 grams of electrolyte…

A:

Q: A solution of vinegar is What is the molality of acetic acid in vinegar which is 0.750 M in acetic…

A: Molality can be expressed as the number of moles of solute per kilograms of the solvent. i.e.…

Q: Mass of test tube, beaker, and cyclohexane = 100.17 g Mass of test tube and beaker =  84.07 g…

A: The mass of the test tube, beaker, and cyclohexane = 100.17 g The mass of the test tube and beaker =…

Q: In a laboratory experiment, the freezing point of an aqueous solu- tion of glucose is found to be…

A: ∆Tf = i × kf × m  where ;  ∆Tf is freezing point depression i is van't hoff factor  Kf is freezing…

Q: Aqueous ethanol solutions are prepared by mixing measured weights of assayed ethanol and…

A: Given an aqueous solution is 27.2 % ethanol, C2H5OH , by mass  We have to find its molality

Q: Calculate the molal concentration, m of a solution that contains 12g of Magnesium hydroxide, mg…

A: Answer: Among different ways of representing the concentration of a solution, molality is one…

Q: 6. The normal freezing point of ethanol is -117.30 °C. How many grams of electrolyte K2SO4 (molar…

A: Given Mass of ethanol = 35 g Kf = 1.99 °C/m T1 = -117.3°C T2 = -120.25 °C Molar masa of K2SO4 = 58.1…

Q: What would be the osmotic pressure at 17°C of an aqueous solution containing 1.85g of sucrose…

A:

Q: Aqueous ethanol solutions are prepared by mixing measured weights of assayed ethanol and…

A:

Q: When 6.31 g of a certain nonvolatile solute is dissolved in 505 g of water, the freezing point of…

A: Given data is as follows: The mass of nonvolatile solute = 6.31 g The mass of water = 505 g = 0.505…

Q: Creatinine, C4H7N3O, is a by-product of muscle metabolism, and creatinine levels in the body are…

A: We need to determine the molality of a normal creatinine level in a 30.0 mL blood sample.Given…

Q: The solubility of nitrogen gas at 25˚C and 1 atm is 6.8 x 10-4 mol/L.  If the partial pressure of…

A: Applying Henry’s equation,S = k*P Here,  P = 1 atm S = 6.8 X 10-4 mol L-1  The partial pressure of…

Q: At 25.0°C, 100.0 mL of aqueous sol containing 45.2 mg of a molecular solute has an osmotic pressure…

A:

Q: An aqueous solution of ammonium sulfate is made. If the Kf is 1.86 and the freezing point is -8.75°C…

A: Colligative properties: The colligative properties are those properties of solutions that depend on…

Q: How many grams of the nonelectrolyte glycerol, C3H8O3 , would have to be added to water in order to…

A: Let x gram of glycerol is added to form 1 L of solution. We know that: Molar mass of glycerol = 92…

Q: Calculate the molality of a solution composed of 4.5g of AgNO3 in 250mL of aqueous solution.

A: The answer to the following question can be calculated as -

Q: What is the solubility of oxygen in water in contact with air when the atmospheric pressure is 0.88…

A: Interpretation - To determine the solubility of oxygen in water in contact with air when the…

Q: Crude oil pumped out of the ground may be accompanied by formation water, a solution that contains…

A: Colligative properties are the properties which depend on the number of atoms or molecules or ions…

Q: What is the molality of an aqueous solution of sucrose that is 12.5% sucrose by mass?

A:

Q: An aqueous solution of isopropyl alcohol, C3H8O, rubbing alcohol, has a mole fraction of alcohol…

A:

Q: he freezing point of benzene, C6H6, is 5.500 °C at 1 atmosphere. Kbenzene) = -5.12 °C/m a laboratory…

A: The question is based on the concept of solutions.   Molality is a method of expressing…

Q: What is the molality of the soluton when a 27g of Sucrose (C6H12O6) is dissolved in 320g of water.

A:

Q: What is the freezing point of a solution with 7.53 g of n-propanol (C3H8O) dissolved in 100.0 mL of…

A:

Q: When 19.77 g of glucose, C6H12O6 (180.2 g/mol), is dissolved in 225.6 g of an organic solvent, the…

A: Number of moles = mass/molar mass Decrease in freezing point = Kf x Molality(m) Molality (m) =…

Q: At 25°C a solution containing 5.25g of a substance in 150.0cm³ of solution exerts an osmotic…

A: 1st question:  Data given: Mass of the substance, m = 5.25 g Temperature of the substance, m = 25 °C…

Q: What is the molality of NaCl in a solution that is 3.000 M , with a density of 1.070g mL^ - 1? Based…

A:

Q: Vitamin B2, riboflavin, is soluble in water. If 0.833 g of riboflavin is dissolved in 18.1 g H2O,…

A: Mass of Riboflavin = 0.833 grams Mass of solvent (water) = 18.1 grams Freezing point of Riboflavin…

Q: The freezing point of benzene, C6H6, is 5.500 °C at 1 atmosphere. Kf(benzene) = 5.12 °C/m In a…

A: Given: Freezing point of benzene = 5.500 °C  Freezing point of solution = 4.500 °C  Mass of compound…

Q: The freezing point of ethanol, CH3CH2OH, is -117.300 °C at 1 atmosphere. Kf(ethanol) = 1.99 °C/m In…

A: Given, In a laboratory experiment, students synthesized a new compound and found that when 13.34…

Q: Calculate the molality of a solution containing 130.6 g of glycine  (NH2CH2COOH)  dissolved in…

A: Molality = Number of moles of solute/Mass of solvent in Kg Number of moles of solute = Mass of…

Q: If 528 mg of an unknown sample was dissolved in 10.00 grams of t-butanol (C4H9OH) and the freezing…

A: Solution Freezing point depression refers to the lowering of the temperature of solvents upon the…

Q: The osmotic pressure, in atmospheres, of a solution formed by dissolving 45.0 mg of KCI in enough…

A:

Q: Calculate the osmotic pressure of a solution containing 24.6 g of glycerin (C3H8O3) in 250.0 mL of…

A: Given: Mass of glycerine = 24.6 g Temperature = 298 K Volume of solution = 250 mL

Q: What is the molality of a solution consisting of 9.265 mass % of C2H5OH dissolved in water

A: Since we know that molality is define as the number of mole of solute per kg of solvent Here mass%=…

Q: The freezing point depression constants of the solvents cy-clohexane and naphthalene are…

A: The freezing point depression constant, ΔTf – For Cyclohexane = 20.1 ◦C For naphthalene = 6.94 ◦C

Q: A solution of vinegar is 0.763 M acetic acid, HC2H3O2. The density of the vinegar is 1.004 g/mL.…

A: Given data,  molarity of acetic acid, HC2H3O2 = 0.763 M  Density of vinegar = 1.004 g/mL

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.